public class Circle extends Pointer
{
   final double PI = 3.1415926;
   protected int Radius;
   Circlu()
   {Radius = 5;}
   Circle(Pointer Center,int Radius)
   {super(Center.GetX(),Center.GetY());this.Radius = Radius;}
   public void PrintArea()
   {double area = PI*Radius*Radius;
    System.out.println("mianji:" + area);
   public void Show()
   {super.Show();
    System.out.println("banjing" + Radius); 
   } 
   }
}
